Getting hands on FrameBuffer, Linux Display System

Dear all,

I am trying to work/study on Linux Display System,  All my work for
the last 10 days is to reach to this milestone.

All i would like to achieve is to somehow control the flow of data
which XServer is passing it to the Display Driver.

I wanaa reach to that level, As in.. whenever the video data is passed
frm XServer to Display driver..  like i will develop kindaa module
which can modify this data... kindaa filter driver...

I am doing everything possible...  http://kerneltrap.org/blog/8787

Setting up remote kernel debugging testbed/trying to locate the
functions which are actually responsible for writing/drawing on the
screen.

Your inputs on this would be highly appreciated.

I am using kernel 2.6.8
Have Nvidia and Intel cards with me.
Os is Fedora Core 3.

Thanx & Regards,
Vishal.


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